viaLibri Requires Cookies CLICK HERE TO HIDE THIS NOTICE

Recently found by viaLibri....

Quaedam Electricitatis recens observa exhibet Jo. Henricus Winkler (pp.307-314, 1 Taf.).
. Phil. Trans., 43 (No.475). - 1744/1745. - (London), Printed for C. Davis, ... Printer to the Royal Society, For the Months of Januar, Febr. and March, 1745, Kl.4°, (2), pp.239-340, 2 Taf., feiner Halbledereinband.. First Printing! - Johann Heinrich Winckler (Winkler) (1703-1770), "a philosopher of Wingendorf, Saxony, and Professor of Languages in the University of Leipzig, first uses a fixed cushion in the electric machine for applying friction instead of by means of the hand, and is, by many, believed to have been the first to suggest the use of conductors as a means of protection against lightning (see B.C. 600). - In March 1745, Winckler read a paper before the Royal Society, in which he describes machines for rubbing tubes and globes, also a contrivance with which he can give his globes, as many as 680 turns in a minute. Priestley states that the German electricians generally used several globes at a time and that they could excite such a prodigious power of electricity from " globes, whirled by a large wheel and rubbed with woollen cloth or a dry hand, that, if we may credit their own accounts, the blood could be drawn from the finger by an electric spark; the skin would burst and a wound appear, as if made by a caustic." - During the year 1746 Winckler made use of common electricity for telegraphic communications by the discharge of Leyden jars through very long circuits, in some of which the River Pleisse formed a part, and it may be added that Joseph Franz had previously discharged the contents of a jar through 1500 feet of iron wire while in the city of Vienna." P.F. Mottelay, Bib. Hist. Electricity & Magnetism (1922), pp.163-164
      [Bookseller: Antiquariat für Medizin - Fritz-Dieter S]
Last Found On: 2015-09-27           Check availability:      ZVAB    


Browse more rare books from the year 1744

      Home     Wants Manager     Library Search     562 Years   Links     Contact      Search Help      Terms of Service     

Copyright © 2018 viaLibri™ Limited. All rights reserved.